Routing Table Report 00:00 GMT Fri 17 Feb, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 401990
Prefixes after maximum aggregation: 171381
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 192757
Total ASes present in the Internet Routing Table: 40173
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32777
Origin ASes announcing only one prefix: 15557
Transit ASes present in the Internet Routing Table: 5418
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 28
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5134
Unregistered ASNs in the Routing Table: 147
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 1978
Prefixes from 32-bit ASNs in the Routing Table: 4755
Special use prefixes present in the Routing Table: 89
Prefixes being announced from unallocated address space: 212
Number of addresses announced to Internet: 2516585953
Equivalent to 150 /8s, 0 /16s and 13 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169161
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96476
Total APNIC prefixes after maximum aggregation: 30819
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92856
Unique aggregates announced from the APNIC address blocks: 39353
APNIC Region origin ASes present in the Internet Routing Table: 4635
APNIC Prefixes per ASN: 20.03
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 146
Number of APNIC addresses announced to Internet: 636217856
Equivalent to 37 /8s, 235 /16s and 234 /24s
Percentage of available APNIC address space announced: 80.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 151163
Total ARIN prefixes after maximum aggregation: 77560
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122830
Unique aggregates announced from the ARIN address blocks: 49475
ARIN Region origin ASes present in the Internet Routing Table: 14935
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5687
ARIN Region transit ASes present in the Internet Routing Table: 1564
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805158664
Equivalent to 47 /8s, 253 /16s and 191 /24s
Percentage of available ARIN address space announced: 64.0
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 101186
Total RIPE prefixes after maximum aggregation: 52699
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92092
Unique aggregates announced from the RIPE address blocks: 56036
RIPE Region origin ASes present in the Internet Routing Table: 16342
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2613
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1362
Number of RIPE addresses announced to Internet: 501161356
Equivalent to 29 /8s, 223 /16s and 29 /24s
Percentage of available RIPE address space announced: 80.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 39156
Total LACNIC prefixes after maximum aggregation: 8101
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38735
Unique aggregates announced from the LACNIC address blocks: 19506
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.64
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 451
Number of LACNIC addresses announced to Internet: 96629768
Equivalent to 5 /8s, 194 /16s and 116 /24s
Percentage of available LACNIC address space announced: 64.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9027
Total AfriNIC prefixes after maximum aggregation: 2115
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 7024
Unique aggregates announced from the AfriNIC address blocks: 2162
AfriNIC Region origin ASes present in the Internet Routing Table: 518
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30969600
Equivalent to 1 /8s, 216 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 46.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1915 11102 671 Korea Telecom (KIX)
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 86 TPG Internet Pty Ltd
4755 1549 385 159 Videsh Sanchar Nigam Ltd. Aut
7552 1271 1064 7 Vietel Corporation
9829 1181 997 29 BSNL National Internet Backbo
9583 1125 84 482 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd.
4808 975 1987 295 CNCGROUP IP network: China169
17488 949 161 224 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3441 3807 202 bellsouth.net, inc.
7029 3387 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1871 680 126 AppliedTheory Corporation
20115 1627 1550 629 Charter Communications
4323 1605 1062 382 Time Warner Telecom
22773 1527 2910 110 Cox Communications, Inc.
19262 1387 4703 397 Verizon Global Networks
30036 1371 241 748 Mediacom Communications Corp
7018 1311 7013 852 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1719 480 15 Corbina telecom
2118 1401 97 13 EUnet/RELCOM Autonomous Syste
15557 1096 2184 60 LDCOM NETWORKS
286 1049 806 199 KPNQwest Backbone AS
34984 651 188 172 Tellcom Iletisim Hizmetleri
6830 642 1926 411 UPC Distribution Services
20940 608 196 477 Akamai Technologies European
12479 605 643 54 Uni2 Autonomous System
8551 580 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1744 323 172 TVCABLE BOGOTA
28573 1669 1085 65 Types of queries are: POCs, o
8151 1520 2987 341 Uninet S.A. de C.V.
7303 1263 758 182 Telecom Argentina Stet-France
26615 893 672 33 Types of queries are: POCs, o
27947 660 67 108 Telconet S.A
11172 632 91 73 Alestra
22047 581 322 17 Types of queries are: POCs, o
6503 560 418 67 AVANTEL, S.A.
3816 555 238 92 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1231 958 13 TEDATA
24863 830 156 44 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
29571 215 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
16637 160 664 85 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3441 3807 202 bellsouth.net, inc.
7029 3387 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
4766 1915 11102 671 Korea Telecom (KIX)
1785 1871 680 126 AppliedTheory Corporation
10620 1744 323 172 TVCABLE BOGOTA
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1719 480 15 Corbina telecom
28573 1669 1085 65 Types of queries are: POCs, o
7545 1640 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3387 3227 Windstream Communications Inc
18566 2091 1914 Covad Communications
1785 1871 1745 AppliedTheory Corporation
8402 1719 1704 Corbina telecom
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1669 1604 Types of queries are: POCs, o
10620 1744 1572 TVCABLE BOGOTA
7545 1640 1554 TPG Internet Pty Ltd
22773 1527 1417 Cox Communications, Inc.
4755 1549 1390 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.1.0/24 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:27 /11:80 /12:231
/13:458 /14:821 /15:1504 /16:12295 /17:6483 /18:10736
/19:21040 /20:29524 /21:29669 /22:40334 /23:37522 /24:209607
/25:65 /26:82 /27:108 /28:278 /29:105 /30:524
/31:19 /32:447
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3042 3387 Windstream Communications Inc
6389 2110 3441 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1698 1719 Corbina telecom
10620 1641 1744 TVCABLE BOGOTA
30036 1328 1371 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1064 1871 AppliedTheory Corporation
15557 1043 1096 LDCOM NETWORKS
8452 1041 1231 TEDATA
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:510 2:713 4:18 5:1 6:3 8:386
10:1 12:1964 13:1 14:603 15:11 16:3
17:7 20:9 23:135 24:1738 27:1193 31:943
32:124 33:2 34:2 36:9 37:188 38:783
39:4 40:115 41:3159 42:97 43:1 44:3
46:1303 47:3 49:334 50:503 52:13 54:2
55:12 56:3 57:46 58:971 59:494 60:345
61:1206 62:957 63:2024 64:4163 65:2287 66:4481
67:2055 68:1358 69:3276 70:979 71:412 72:1824
73:1 74:2712 75:476 76:333 77:977 78:950
79:500 80:1215 81:885 82:612 83:525 84:593
85:1154 86:748 87:926 88:351 89:1568 90:268
91:4484 92:531 93:1347 94:1387 95:1110 96:421
97:310 98:821 99:38 100:4 101:272 103:808
106:43 107:154 108:168 109:1493 110:724 111:851
112:439 113:544 114:619 115:758 116:900 117:725
118:918 119:1258 120:365 121:709 122:1627 123:1090
124:1386 125:1326 128:539 129:193 130:218 131:592
132:166 133:21 134:235 135:62 136:215 137:182
138:287 139:157 140:490 141:263 142:393 143:404
144:509 145:69 146:485 147:247 148:770 149:282
150:163 151:197 152:447 153:170 154:7 155:414
156:212 157:370 158:160 159:518 160:322 161:245
162:341 163:188 164:531 165:411 166:557 167:458
168:763 169:148 170:833 171:114 172:4 173:1749
174:600 175:443 176:502 177:502 178:1258 180:1199
181:66 182:738 183:278 184:430 185:1 186:2043
187:844 188:1070 189:1173 190:5514 192:6011 193:5559
194:4368 195:3451 196:1303 197:167 198:3628 199:4397
200:5709 201:1745 202:8495 203:8691 204:4370 205:2451
206:2762 207:2786 208:4097 209:3588 210:2796 211:1494
212:2074 213:1850 214:859 215:101 216:5047 217:1494
218:555 219:340 220:1233 221:562 222:347 223:314
End of report